Home / 6,912.21-9,540.39-4,393.83

Finding the Fourth Proportional to 6,912.21, 9,540.39 and 4,393.83

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Solution

The fourth proportional to 6,912.21, 9,540.39 and 4,393.83 is: 6,064.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,912.21 : 9,540.39 = 4,393.83 : x
  2. Step 2: Convert to fraction form
    6,912.21/9,540.39 = 4,393.83/x
  3. Step 3: Cross multiply
    6,912.21x = 9,540.39 × 4,393.83
  4. Step 4: Simplify right side
    6,912.21x = 41,918,851.79
  5. Step 5: Solve for x
    x = 41,918,851.79/6,912.21
  6. Step 6: Final answer
    x = 6,064.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.